312 TEANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



Off Garwick Head, 24/9/92 ; Little Omie, 28/7/93 ; 8 

 miles off Fleshwick Bay, 30 to 33 L, 5/6/92; Menai 

 Straits off Beaumaris 10 to 15 f„ 17/9/94. None of the 

 specimens taken so far show the prolongation of the first 

 epimere of the perseon described by Norman and from 

 which this species takes its name. Apparently it only 

 acquires its full development in northern seas. Colour 

 transparent whitish sparingly freckled with dull red. 

 Length 4 mm. 



Microprotopus maculatus, Norman. 



Colwyn Bay and Little Orme ; Puffin Island, 15 fathoms ; 

 Menai Straits ; Port Erin Harbour — abundant ; tow-net 

 25 miles S. E. of Calf of Man 6/6/92. Colour brown. 

 Length 3J mm. 



Photis longicaudata (Bate). 



Puffin Island, 15 fathoms. 8 m. W. of Port Erin, 38 

 f., mud and 6 m. S.E. of Calf, 34 f., sand, shells, and 

 gravel, 25/4/95. Length 6 mm. 



Photis pollex, n. sp. (PL XIX., figs. 16—19). 



= P. reinhardi, Kep. I., p. 216. Very near P. tenui- 

 cornis, Sars, from which it differs only in the second 

 gnathopod of the male. In this the second joint is nearly 

 half as long as the first and equal to the third. The prop, 

 has the post, margin prolonged into a tooth or thumb 

 having its base much nearer the carp, than in P. reinhardi 

 (whence the specific name) the point of which exactly 

 meets that of the dactylus. The palm, which is longer 

 than the post, margin, is concave but expands distally 

 into two tubercles so that this portion of the propodos is 

 wider than the middle. The female is like that of P. 

 tenuicomis. Length 2 mm. Colwyn Bay, shore to 2J 

 f. ; Little Orme; Menai Straits, 5 to 10 f., 24/5/90. 



Podoceropsis excavata (Bate) = Ncenia rimipalmata, 

 Bep. I., p. 217. 



